Answer:
For example, when a car travels at a constant speed, the driving force from the engine is balanced by resistive forces such as air resistance and friction in the car's moving parts. The resultant force on the car is zero.
Explanation:
hope this helps
Answer: A device records the time it takes sound waves to travel from the surface to the ocean floor and back again. Sound waves travel through water at a known speed. Once scientists know the travel time of the wave, they can calculate the distance to the ocean floor.
Explanation:
Answer:
Explanation:
To calculate the momentum of a moving object multiply the mass of the object times its velocity. The symbol for momentum is a small p. So, the momentum of the object is calculated to be 8.0 kg-m/s. Note the unit for momentum.
Distance= speed x time
distance=300x1.3
distance=390meters in 3 minutes
Answer:
d = 895 nm
Explanation:
Given:
- Wavelength of light λ = 633 nm
- Angle Q is between central order = 45 degrees
Find:
What is the width of a slit?
Solution:
- The relationship between and wavelength and the order of fringes with respect to slit size d is given by Young's experiment as follows:
sin (Q) = m*λ / d
- Use the above result and compute for the grating d for m =1,
d = λ / sin(Q)
d = 633*10^-9 / sin(45)
d = 0.89 um
- The width of slit is d = 895 nm
